A comprehensive study on the synthesis and paramagnetic properties of PEG―coated Fe3O4 nanoparticles

The PEG-coated Fe3O4 (PEG-Fe3O4) nanoparticles had been fabricated through chemical coprecipitation method. We comprehensively investigated the influence of different reaction conditions, such as vapor pressures with opening or sealing the beaker, molecular weights and amounts of PEG, on the structu...

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Veröffentlicht in:	Applied surface science 2014-06, Vol.303, p.425-432
Hauptverfasser:	Yang, Jinghai, Zou, Ping, Yang, Lili, Cao, Jian, Sun, Yunfei, Han, Donglai, Yang, Shuo, Wang, Zhe, Chen, Gang, Wang, Bingji, Kong, Xiangwang
Format:	Artikel
Sprache:	eng
Schlagworte:	Condensed matter: electronic structure, electrical, magnetic, and optical properties Condensed matter: structure, mechanical and thermal properties Coprecipitation Cross-disciplinary physics: materials science rheology Exact sciences and technology Molecular weight Nanoparticles Physics Sealing Size distribution Synthesis Vapor pressure
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Beschreibung
Zusammenfassung:	The PEG-coated Fe3O4 (PEG-Fe3O4) nanoparticles had been fabricated through chemical coprecipitation method. We comprehensively investigated the influence of different reaction conditions, such as vapor pressures with opening or sealing the beaker, molecular weights and amounts of PEG, on the structural and paramagnetic properties of PEG-Fe3O4 nanoparticles. The well-dispersed magnetic PEG-Fe3O4 nanoparticles with better size distribution can be obtained with adding 4g PEG1000 while sealing the beaker. The possible growth mechanism was also discussed in detail.
ISSN:	0169-4332 1873-5584
DOI:	10.1016/j.apsusc.2014.03.018